Enabling The Delete Button After Recent Gmail Update

With the latest Gmail update for Android, the delete button was removed by default. To delete you can press your options key while in an email and that will show the delete option.

You do have the option to archive but not the option to delete unwanted messages.

This is a bit time consuming when trying to remove emails that you do not want to read and just want to delete.

To re-enable the delete option press the options key to bring up the menu (this can be done from inside an email or from the main Gmail screen):

Select General settings:

Select Archive & delete actions and select the action that you want:

One thing to note is when selecting Show delete only, you will have the option to Swipe to delete. I selected Show delete only since I do not archive my emails. 

Now in the same email I have the trash can icon to delete that email:

Also from the main Gmail screen I can now long press to select an email and get the same trash can icon or I can swipe to delete my email messages now. 

I tested this on Android 4.1.2 and Android 4.1.1.